Download or read book Varietal Screening of Winter Maize Genotypes in Terai Region of Nepal written by Bishnu Prasad Kandel and published by GRIN Verlag. This book was released on 2019-06-06 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bachelor Thesis from the year 2019 in the subject Agrarian Studies, , course: B. Sc. Agriculture, language: English, abstract: This Bachelor Thesis focusses on elucidating out superior genotypes for varietal development of maize, analyzing the correlation study of grain yield with other parameters and estimating the direct and indirect effects of various parameters on grain yield. Maize was domesticated around 7000 years ago in Central Mexico. Maize belongs to family Poaceae and tribe Maydae. Maize is grown in different ranges of environment condition. Thus, through introduction and breeding, it has gained adaptation all over the world. The spread of maize cultivation in the world was due to its diversity, high adaptability and versatility. The reasons for its popularity include high yields per unit area, husk protection against birds and rain, fairly easy to weed as well as possession of a good competition rate with weeds because of its rapid vertical growth. In Nepal, maize is the second most important cereal crop in terms of area and production. Farmers and breeders want successful new maize hybrids that show high performance for yield and other essential agronomic traits. Their superiority should be reliable over a wide range of environmental conditions. The basic cause of difference between genotypes in their yield stability is the occurrence of genotype-environment interaction (GEI). Genotype – environment interaction may be expected to be high when environmental differences are high as in Ghana. Hence, it is important to assess the importance of interactions in the selection of genotypes across several environments besides calculating the average performance of the genotypes under evaluation.
Download or read book Sustainable maize production systems for Nepal Proceedings of a Maize Symposium Kathmandu Nepal 3 5 Dec 2001 written by Rajbhandari, N.P. and published by CIMMYT. This book was released on 2014-07-01 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Maize in Nepal written by and published by CIMMYT. This book was released on 2001 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Growth and Productivity of Winter Maize Zea mays L Under Different Levels of Nitrogen and Plant Population written by Jiban Shrestha and published by Universal-Publishers. This book was released on 2015-09-29 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: A field experiment was conducted at farmer’s field of Anandapur, Mangalpur VDC-3, Chitwan, Nepal during winter season from September 2006 to February 2007 to study the effects of nitrogen and plant population on maize. Fifteen treatment combinations consisting of five levels of nitrogen: 0, 50, 100, 150 and 200 kg N/ha and three levels of plant population; 55555 plants/ha (60 cm × 30 cm spacing), 66666 plants/ha (60 cm × 25 cm spacing) and 83333 plants/ha (60 cm × 20 cm spacing) were tested in factorial randomized complete block design (RCBD) with 3 replications. “Rampur Composite” variety of maize was planted on sandy silt loam and strongly acidic soil having medium in total nitrogen (0.123%), high in soil available phosphorous (77.56 kg/ha) and low in soil available potassium (23.25 kg/ha). The research findings revealed that each level of nitrogen significantly increased grain yield upto 200 kg N/ha. The grain yield (6514.48 kg/ha) obtained under 200 kg N/ha was significantly higher than that of 0, 50, 100 and 150 kg N/ha. The percent increment in yield due to application of 50, 100, 150 and 200 kg N/ha was to the extent of 62.11, 104.74, 135.68 and 154.74%, respectively over control. Significant effect on grain yield due to different levels of plant population was observed. The grain yield (5113.46 kg/ha) obtained under 66666 plants/ha was statistically at par with that under 83333 plants/ha, but significantly superior over that under 55555 plants/ha. The interaction between different nitrogen levels and plant densities on grain yield showed that the highest grain yield (6925.79 kg/ha) was obtained under treatment of 200 kg N/ha + 66666 plants/ha. The yield attributes namely number of cobs/plant, cob length, cob diameter, number of grain rows/cob and 1000 seed weight significantly increased with increasing N levels and decreasing plant population levels. The number of barren plants/ha decreased with increasing levels of N but increased with increasing levels of plant population. The net return (Rs. 42188.74/ha) and benefit:cost ratio (1.67) obtained under 200 kg N/ha were significantly highest than that obtained under other levels of nitrogen (150, 100, 50 and 0 kg N/ha). The plant population of 66666 plants/ha gave the highest net returns (Rs. 25812.28) which was 10.19 and 49.64% higher than that of 83333 plants/ha and 55555 plants/ha, respectively. The benefit: cost ratio (1.44) obtained under 66666 plants/ha was significantly higher than that of 55555 and 83333 plants/ha. The interaction between different nitrogen levels and plant densities on economics of maize production showed that significantly highest net return (Rs.48606.98) and B:C ratio (1.78) were under treatment of 200 kg N/ha + 66666 plants/ha. The highest grain yield and maximum profit were obtained when maize variety “Rampur Composite” was planted with 200 kg N/ha and plant population level of 66666 plants/ha (60 cm × 25 cm spacing).
Download or read book Maize Research written by Jiban Shrestha and published by Nipa. This book was released on 2023-07-08 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book uates its readers about the methods and management of livestock during disasters. The book has covered all mad made and natural disasters and their effect on livestock and how they can be managed better for longer survival and help to the humans. Topics on how animals can sense a disaster in advance and what are the common indications given by them and how humans can benefit from it. Book elucidates the management of feeding, feed resources, production and health so as to make the livestock production economical. It is hoped that the compilation will prove useful for the researchers, planners and policy makers to understand the causes for the loss of productivity and health of livestock in drier regions and help in devising management plans towards sustenance and improvement of production.
Download or read book Maize Seed Industries in Developing Countries written by Michael L. Morris and published by Lynne Rienner Publishers. This book was released on 1998 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Divided into four parts, this volume first lays out the importance of maize seed industries and presents a conceptual framework. The second section describes the key products and processes associated with maize seed industries, including varietal development, marketing, and industrial regulation. The third section offers nine country case studies, while the fourth part discusses the likely future course of seed industry development and alternative organizational forms. Paper edition (unseen), $29.95. Annotation copyrighted by Book News, Inc., Portland, OR
Download or read book Maize Research Highlights 1999 2000 written by and published by CIMMYT. This book was released on with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Drought Stress in Maize Zea mays L written by Muhammad Aslam and published by Springer. This book was released on 2015-11-20 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on early germination, one of maize germplasm most important strategies for adapting to drought-induced stress. Some genotypes have the ability to adapt by either reducing water losses or by increasing water uptake. Drought tolerance is also an adaptive strategy that enables crop plants to maintain their normal physiological processes and deliver higher economical yield despite drought stress. Several processes are involved in conferring drought tolerance in maize: the accumulation of osmolytes or antioxidants, plant growth regulators, stress proteins and water channel proteins, transcription factors and signal transduction pathways. Drought is one of the most detrimental forms of abiotic stress around the world and seriously limits the productivity of agricultural crops. Maize, one of the leading cereal crops in the world, is sensitive to drought stress. Maize harvests are affected by drought stress at different growth stages in different regions. Numerous events in the life of maize crops can be affected by drought stress: germination potential, seedling growth, seedling stand establishment, overall growth and development, pollen and silk development, anthesis silking interval, pollination, and embryo, endosperm and kernel development. Though every maize genotype has the ability to avoid or withstand drought stress, there is a concrete need to improve the level of adaptability to drought stress to address the global issue of food security. The most common biological strategies for improving drought stress resistance include screening available maize germplasm for drought tolerance, conventional breeding strategies, and marker-assisted and genomic-assisted breeding and development of transgenic maize. As a comprehensive understanding of the effects of drought stress, adaptive strategies and potential breeding tools is the prerequisite for any sound breeding plan, this brief addresses these aspects.
Download or read book Nitrogen Fixation in Tropical Cropping Systems written by K. E. Giller and published by CABI. This book was released on 2001 with total page 443 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen fixation by leguminous plants is especially important when farmers are trying to minimise fertilizer use for cost or environmental reasons. This second edition of the highly successful book, first published in 1991, contains thoroughly updated and revised material on the theory and practice of nitrogen fixation in tropical cropping systems.
Download or read book Maize In The Third World written by Christopher Dowswell and published by CRC Press. This book was released on 2019-04-01 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maize is the world's most widely grown cereal and a dietary staple throughout the Third World, but its full potential has only begun to be tapped. This book thoroughly examines the biological and economic issues relevant to improving the productivity of maize in developing countries. The authors explore a wide range of practical problems, from maxi
Download or read book FUTURE SMART FOOD written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-10-09 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication demonstrates the benefits of neglected and underutilized species, including amaranth, sorghum and cowpea, and their potential contribution to achieving Zero Hunger in South and Southeast Asia.
Download or read book Wheat Facts and Futures 2009 written by and published by CIMMYT. This book was released on with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Second Report on the State of the World s Plant Genetic Resources for Food and Agriculture written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2010-01-01 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant genetic resources provide a basis for food security, livelihood support and economic development as a major component of biodiversity. The Second Report on the State of the World’s Plant Genetic Resources for Food and Agriculture demonstrates the central role plant genetic diversity continues to play in shaping agriculture growth in the face of climate change and other environmental challenges. It is based on information gathered from Country Reports, regional syntheses, thematic studie s and scientific literature, documenting the major achievements made in this sector during the past decade and identifying the critical gaps and needs that should urgently be addressed. The Report provides the decision-makers with a technical basis for updating the Global Plan of Action on Conservation and Sustainable Use of Plant Genetic Resources for Food and Agriculture. It also aims to attract the attention of the global community to set priorities for the effective management of plant genet ic resources for the future. Purchase a print copy.
Download or read book Water wise Rice Production written by B. A. M. Bouman and published by Int. Rice Res. Inst.. This book was released on 2002 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Maize Nutrition Dynamics and Novel Uses written by Dharam Paul Chaudhary and published by Springer Science & Business Media. This book was released on 2013-12-03 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maize is a globally important crop mainly utilized as feed, food and raw material for diverse industrial applications. Among cereals, it occupies third place after rice and wheat and is a staple food for a large segment of population worldwide particularly in the Asian as well as African countries. This monogram discusses various aspects of nutritional quality of maize such as quality protein maize which has been considered as most significant discovery in enhancing nutritional quality of cereals in terms of increasing the concentration of essential amino acids. The biochemistry of starch which is an important industrial product of maize has been discussed in detail. Further, the role of maize oil which is highly regarded for human consumption as it reduces the blood cholesterol concentration has also been elaborated. Naturally, maize is a rich source of carotenoids such as beta-carotene, zeaxanthin, lutein, cryptoxanthin which have highly diverse health benefits ranging from maintaining normal vision to lowering of oxidative stress. The need for biofortification of maize for provitamin A carotenoids and their role in alleviating vision impairments have also been discussed. The effect of various biotic and abiotic stresses particularly carbon dioxide and temperature on quality has been discussed thoroughly. Many value-added products as well as fermented foods that have been produced from maize which is consumed in different forms worldwide are also discussed. The aspects related to the maize application as fodder and as a source of malting have also been covered concisely. Overall, the book provides complete information about various quality aspects of maize. The various stakeholders such as maize researchers, extension specialists, students, teachers as well as farmers will be immensely benefitted from this monogram.
Download or read book Farming Systems and Poverty written by John A. Dixon and published by Food & Agriculture Org.. This book was released on 2001 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: A joint FAO and World Bank study which shows how the farming systems approach can be used to identify priorities for the reduction of hunger and poverty in the main farming systems of the six major developing regions of the world.
Download or read book Rainfed Lowland Rice Improvement written by David J. Mackill and published by Int. Rice Res. Inst.. This book was released on 1996 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: What is rainfed lowland rice? The rainfed lowland ecosystem; The cultivars; Agronomic traits; Growth duration; Drought resistance; Submergence tolerance; Cold tolerance; Adverse soils telerance; Disease and insect resistance; Grain quality; Selecting parents and making crosses; Managing segregating generations; Evaluating advanced breeding lines; Releasing varieties.
